Hybrid fiber influence on strength and toughness of RC beams

Ding, Yining; You, Zhiguo; Jalali, Saíd

doi:10.1016/j.compstruct.2009.10.016

Cited by 64 publications

(42 citation statements)

References 7 publications

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“…The development and the usage of SCC have resolved the workability issue. The applicability of steel fibres with SCC has been investigated and has proven to be feasible (Ding, Liu, Togal, & Jalali, 2010;Ding, You, & Jalali, 2011). The properties of fibres that are usually of interest are fibre concentration, fibre geometry, fibre orientation and fibre distribution.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on steel fibre reinforced self-compacting concrete incorporating high volume of marble powder

Haddadou

Chaïd

Ghernouti

2014

European Journal of Environmental and Civil Engineering

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This paper presents the results of an experimental study which investigates the effect of the use of marble powder (MP), as partial cement substitution, on the fresh and hardened properties of fibre-reinforced self-compacting concrete (FRSCC) of nonuniform size (length) and aspect ratio of fibres used. For each length of steel fibre (25, 30 and 50 mm), three percentages (.5, .8 and 1%) were used to improve the performance of FRSCC. All mixtures of concrete specimens prepared with 30% of MP were evaluated. Slump flow time and diameter, sieve stability and L-Box were performed to assess the fresh properties of the (FRSCC). Compressive strength, splitting tensile strength, flexural strength and ultrasonic pulse velocity of the FRSCC and self-compacting concrete (SCC) were determined for the hardened properties. The results were compared with ordinary concrete (without steel fibre) containing 30% of MP (SCC). The results suggest that the incorporation of steel fibre in the SCC requires the use of high volume of superplasticiser to overcome the workability loss resulting from the elongated shape and large surface area of fibres. The sieve stability, Slump flow diameter, L-Box and Slump flow time for RSCC dropped to 1, 10, 12 and 65%, respectively. The workability loss is significant in the case of 1% and 50 mm length fibre which revealed the highest length and percentage. On the other hand, the use of steel fibre and MP has a significant effect on the mechanical performances. The increase in ultrasonic pulse velocity, compressive strength, splitting tensile strength and flexural strength reaches 2, 8, 16 and 29%, respectively. The addition of fibre enhanced the ductility significantly. The optimum volume fraction and aspect ratio of fibre for better performance in terms of strength was found to be .8% and 30 mm, respectively. The results indicated that high volume of MP can be used to produce FRSCC.

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Section: Introductionmentioning

confidence: 99%

Experimental study on steel fibre reinforced self-compacting concrete incorporating high volume of marble powder

Haddadou

Chaïd

Ghernouti

2014

European Journal of Environmental and Civil Engineering

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“…When FRC beams with steel and polypropylene fibers were tested for shear, it was observed that the progress of cracking was relatively slow. (Ding et al 2010).…”

Section: Fibers In Reinforced Cement Concretementioning

confidence: 99%

Fibers in Structural Concrete-a Critical Review

U.P.B.C.Sekhar¹,

Vengadeshwari²,

Reddy³

2016

IJMTER

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In this paper the recent progress and achievement in the application of fibers in concrete has been intensively investigated. Most of the conclusions on fibers are arrived at by conducting experiments on plain and reinforced concrete. The significance of this paper is in the collation of the research works reported to date in the area of fibers/hybrid fibers on plain, reinforced and prestressed concrete. Research efforts on the behavior of fiber reinforced high strength concrete in the area of prestressed concrete structures are limited. If the addition of fibers proves to improve the ductility and post crack strength of prestressed concrete, it would be a boon to the construction industry.

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“…The use of hybrid fibre, which is a combination of two or more types of fibres, can enhance the mechanical properties of the HSC effectively. However, only a limited number of research studies are available in the literature regarding hybrid steel fibre reinforced HSC Ding et al, 2010;Balanji et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Behaviour of high strength concrete reinforced with different types of steel fibres

Balanji

Sheikh

Hadi

2017

Australian Journal of Structural Engineering

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This paper reports the results of an experimental investigation on the behaviour of High Strength Concrete (HSC) reinforced with different types of steel fibre (copper-coated micro steel fibres, deformed macro steel fibre and hybrid steel fibre). A total of 40 cylindrical specimens with 100 mm diameter and 200 mm height were cast and tested for compressive and split tensile strengths. Three groups of steel fibre reinforced HSC specimens were prepared. The first group included 2, 3, and 4% by volume of coppercoated micro (CM) steel fibre; the second group included 1, 2 and 3% by volume of deformed macro (DM) steel fibre; and the third group included 1.5% (1% CM + 0.5% DM), 2.5% (1.5% CM + 1% DM), and 3.5% (2% CM + 1.5% DM) by volume of hybrid (H) steel fibre. Plain HSC specimens without steel fibre were also prepared. The experimental results showed higher improvements in the compressive and split tensile strengths of the HSC with the inclusion of 3, 2, and 2.5% by volume of CM, DM and H steel fibres, respectively, compared to the plain HSC.

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Hybrid fiber influence on strength and toughness of RC beams

Cited by 64 publications

References 7 publications

Experimental study on steel fibre reinforced self-compacting concrete incorporating high volume of marble powder

Experimental study on steel fibre reinforced self-compacting concrete incorporating high volume of marble powder

Fibers in Structural Concrete-a Critical Review

Behaviour of high strength concrete reinforced with different types of steel fibres

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